38722539 has 8 divisors (see below), whose sum is σ = 51706512. Its totient is φ = 25776800.

The previous prime is 38722529. The next prime is 38722543. The reversal of 38722539 is 93522783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38722539 - 2⁵ = 38722507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38722497 and 38722506.

It is not an unprimeable number, because it can be changed into a prime (38722529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7104 + ... + 11309.

It is an arithmetic number, because the mean of its divisors is an integer number (6463314).

Almost surely, 2^38722539 is an apocalyptic number.

38722539 is a deficient number, since it is larger than the sum of its proper divisors (12983973).

38722539 is a wasteful number, since it uses less digits than its factorization.

38722539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19117.

The product of its digits is 90720, while the sum is 39.

The square root of 38722539 is about 6222.7436874742. The cubic root of 38722539 is about 338.3150168174.

The spelling of 38722539 in words is "thirty-eight million, seven hundred twenty-two thousand, five hundred thirty-nine".